Patent US4603890A successfully refreshed from Google Patents.
US4603890A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Barbed tubing connector
Assignee: Individual
•
Filing: 1984-12-06
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Granted: 1986-08-05
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Expires: 2004-12-06
Abstract
Abstract A connector sealingly engageable within the end of a flexible tubing or hose carrying a pressurized fluid. The connector is a rigid tubular body having peripheral gripping barbs. The outer, tapered end of the connector is fitted with an O-ring sealing the tubing over the connector. The end portion of the tubing surrounding the barbs is preferably vented to the outside.
Inventors
- 👤 Robert Huppee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:10
CPC Classifications
F; F16; F16L; F16L33/00; F16L33/30
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
167 words
A tubing connector for sealingly engaging the end portion of a flexible and somewhat elastic tubing adapted to carry a pressurized fluid, said connector comprising a rigid tubular body having a free end for insertion into said tubing, an endmost barb at said free end and additional longitudinally spaced-apart frusto-conical barbs protruding from the outer surface of said body, all of said barbs being concentric and flaring away from said body free end, the frusto-conical surface of said endmost barb having a peripheral groove and an O-ring engaging said groove and protruding outwardly from said frusto-conical surface, said barbs adapted to be inserted into and expand said tubing end portion, said O-ring then sealing said tubing over said connector and preventing fluid pressure build-up in the portion of said tubing surrounding said barbs, whereby said barbs can resist pull-out of the tubing from said connector, and further including fluid pressure venting means for further preventing fluid pressure build-up in the portion of the tubing surrounding said barbs.
Claim 2
Dependent Claim
167 words
A tubing connector for sealingly engaging the end portion of a flexible and somewhat elastic tubing adapted to carry a pressurized fluid, said connector comprising a rigid tubular body having a free end for insertion into said tubing, an endmost barb at said free end and additional longitudinally spaced-apart frusto-conical barbs protruding from the outer surface of said body, all of said barbs being concentric and flaring away from said body free end, the frusto-conical surface of said endmost barb having a peripheral groove and an O-ring engaging said groove and protruding outwardly from said frusto-conical surface, said barbs adapted to be inserted into and expand said tubing end portion, said O-ring then sealing said tubing over said connector and preventing fluid pressure build-up in the portion of said tubing surrounding said barbs, whereby said barbs can resist pull-out of the tubing from said connector, and further including fluid pressure venting means for further preventing fluid pressure build-up in the portion of the tubing surrounding said barbs.
Claim 3
Dependent Claim
19 words
The tubing connector of claim 1, wherein said venting means is a fluid escaping passage made through said barbs.
Claim 4
Dependent Claim
24 words
The tubing connector as defined in claim 2, wherein said passage is formed by a longitudinal notch made at the periphery of each barb.
Claim 5
Dependent Claim
20 words
The tubing connector as defined in claim 1, combined with said tubing when said tubing is fitted over said connector.
Claim 6
Dependent Claim
20 words
The combination of claim 4, wherein said venting means is a bore made through said tubing downstream from said O-ring.
Claim 7
Dependent Claim
19 words
The combination of claim 4, further including a tension strap tensioned around said tubing in registry with said O-ring.
Claim 8
Dependent Claim
20 words
The combination of claim 4, further including a friction fit sleeve slipped around said tubing in registry with said O-ring.
Claim 9
Dependent Claim
146 words
A tubing connector for sealingly engaging the end portion of a flexible and somewhat elastic tubing adapted to carry a pressurized fluid, said connector comprising a rigid tubular body having a free end for insertion into said tubing, an endmost barb at said free end and additional, longitudinally spaced apart frusto-conical barbs protruding from the outer surface of said body, all of said barbs being concentric and flaring away from said body free end, the frusto-conical surface of said endmost barb having a peripheral groove and an O-ring engaging said groove and protruding outwardly from said frusto-conical surface, said barbs adapted to be inserted into and expand said tubing end portion, said O-ring then sealing said tubing over said connector and preventing fluid pressure build-up in the portion of said tubing surrounding said barbs, whereby said barbs can resist pull-out of the tubing from said connector.
Claim 10
Dependent Claim
146 words
A tubing connector for sealingly engaging the end portion of a flexible and somewhat elastic tubing adapted to carry a pressurized fluid, said connector comprising a rigid tubular body having a free end for insertion into said tubing, an endmost barb at said free end and additional, longitudinally spaced apart frusto-conical barbs protruding from the outer surface of said body, all of said barbs being concentric and flaring away from said body free end, the frusto-conical surface of said endmost barb having a peripheral groove and an O-ring engaging said groove and protruding outwardly from said frusto-conical surface, said barbs adapted to be inserted into and expand said tubing end portion, said O-ring then sealing said tubing over said connector and preventing fluid pressure build-up in the portion of said tubing surrounding said barbs, whereby said barbs can resist pull-out of the tubing from said connector.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-08-04 | 1990-02-03 | 1990-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-08-04 | 1994-02-03 | 1994-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-08-04 | 1998-02-03 | 1998-08-05 | $7700.00 | Window Closed / Lapsed |